Design writer Alissa Walker recently took a tour of L.A.'s original subway system, one whose tunnels are no longer in operation, though they remain down there bricked off and all but forgotten beneath buildings downtown.

Cue horror movie soundtrack here, with hapless apartment dwellers in a newly renovated downtown loft complex finding strange things coming up from the facility's voluminous basement floors; the power flickers on and off; pets disappear; strange sounds skitter and thump down the corridors at night, leaving muddy trails; then somehow, someone, as in the following photograph —

— knocks a hole in the wall, perhaps accidentally losing their grip on a piece of furniture as they move their new table or couch into the building, revealing the eery, abandoned subway tunnels below. And, soon, they go down to find the answers to what's gone wrong in their otherwise perfectly photogenic multimillion dollar building, only to open the door to something altogether much worse.